Curtain ring



FIG. 1 is a perspective view of the curtain ring of the present invention;

FIG. 2 is a front view of the curtain ring of the present invention

FIG. 3 is a back view of the curtain ring of the present invention;

FIG. 4 is a left side view of the curtain ring of the present invention;

FIG. 5 is a right side view of the curtain ring of the present invention;

FIG. 6 is a top view of the ring of the present invention; and,

FIG. 7 is a bottom view of the curtain ring of the present invention.

The broken lines represent portions of the structure that form no part of the claim. 

CLAIM I claim the ornamental design for a curtain ring, as shown. 